Strand tensioning mechanism



Dec. 18, 1956 A. F. PIEPER 2,774,551

STRAND TENSIONING MECHANISM Filed Aug. 15, 1955 4(Hl I .1; Z

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l [:s I l a JIM/ 9 I 5 I N V EN TOR. ALPHONSE F P/EPER BY U Q 4 IIIIS ATTORNEY United States Patent O STRAND TENSIONING MECHANISM 'Alphonse' F.Pieper, Brighton, N. Y. Application August 1955, Serial No. 528,213 3 Claims. (c1'.242 is4 This invention relates to a strand tensioning mechanism with particular reference to the general type of construction involving a relatively fixed comb member and a relatively movable comb member between which the yarn or strand travels, and it has for its purpose to provide a simple and improved means for mounting the relatively fixed member whereby it is always maintained in proper relation to the movable comb member.

In sructures of this type as heretofore designed, the relatively fixed comb member has been held in position by flexing its metal supporting plate, and the pintle which carries the supporting plate, over a pair of stops mounted on the frame and engaging the supporting plate on opposite sides of its pintle. This structure has the objection that after a time, the plate and pintle become more or less permanently bent and no longer function to hold the comb member accurately in fixed relation to the movable comb member, and a purpose of the invention is to afford an inexpensive and practical means that effectively holds the comb member and its supporting .plate permanently in fixed relation to the movable comb member, such fixed relationship being not affected by the continued use of the device.

In a more specific aspect, the invention consists in locating a spiral spring under compression between the supporting plate of the comb member and the frame, and attaching the spring to the supporting plate by connecting it to the fastening instrumentality that secures the comb member on the supporting portion.

A further objective of the invention is to afford an inexpensive and practical way of mounting the spring on the supporting plate and attaching it to one of the fastening screws that secures the comb member to the supporting portion of the plate.

To these and other ends, the invention consists in the construction and arrangement of parts that will appear clearly from the following description, when read in conjunction with the accompanying drawings, the novel features being pointed out in the claims following the specification.

In the drawings:

Fig. 1 is a plan view of 'a strand tensioning mechanism of the general type to which the invention is adaptable;

Fig. 2 is a side elevation of the same;

Fig. 3 is a transverse sectional view on line 3-3 of Fig. 2, and

Fig. 4 is a transverse sectional view on line 4-4 of Fig. 2.

Referring more particularly to the drawings, in which like reference numerals refer to the same parts throughout the several views, the invention is illustrated in its preferred embodiment as applied to a strand tension mechanism of the form shown in pending application Ser. No. 442,091, filed July 8, 1954, now Patent No. 2,743,069, issued April 24, 1956, and includes a metal frame 1 provided with ears 2 which support a pintle 3 on which the relatively fixed comb member is arranged.

' slightly over stops or abutments located on opposite sides of the pintle, and this arrangement has the objection that after continued usage, the pintle and supporting plate acquire a per'manently bent relation and b'ecomesomewhat loose in the supporting cars, so that the relatively fixed comb member has movement or play which is objectionable in the feeding of yarn through the mechanism. To overcome this, a stop or abutment 6 is provided on the frame, on one side of the supporting plate, to limit its turning movement in the ears 2, and the supporting plate and comb member are held in fixed relation to the movable comb member by a spring acting against the opposite side of the supporting plate and acting to retain the comb member and supporting plate against said stop, and preventing their movement relatively to the other comb member.

supporting plate into which the fastening screws are threaded.

In order to actuate the supporting plate against the stop 6, there is provided a coil spring 10, one end of which rests on the frame while the opposite end of the spring is of slightly reduced diameter and is threaded on a portion of one of the fastening screws which extends through the supporting plate and enters the coil spring.

The coil spring 10 is arranged between the frame and v the supporting portion of the plate under compression,

and constantly actuates the comb member toward the movable comb member, thus maintaining it in constant fixed relation to the movable comb member, so that there is no opportunity for the relatively fixed comb member to loose or move away from its proper position, due to continued usage, or wear of the parts, since the spring is effective to maintain the supporting plate always against the stop, irrespective of the length of time of operation or amount of wear to which the structure may be subjected.

While the invention has been described in relation to the structure herein shown, it is not confined to the details set forth herein, and this application is intended to cover such modifications or departures as may come'within the purposes of the improvement or the scope of the following claims.

I claim:

1. In a strand tensioning mechanism including a frame, spaced ears on the frame, a metal plate having a supporting portion along one edge and bearing portions, a pintle extending through said bearing portions, and pivotally mounted at its ends in said ears, a comb member of refractory material fastened to said supporting portion, a fastening screw extending through said comb member and supporting portion, and a stop located on the frame'under the opposite edge of the plate, the improvement which consists in a spiral spring under compression having one end engaging said frame and a reduced spiral portion at its opposite end threaded on saidfastening screw and acting to hold the plate against said stop.

2. In a strand tensioning mechanism including a frame,

spaced ears on the frame, a metal plate having a supportn portion alon on e nd bearin Portions, a Bill'l? extending through said bearing portions and pivotally mounted at its ends in said ears, a comb member of refractory material fastened to said supporting portion, a fastening screw extending through said comb member and supporting portion, and a stop located on the frame under the opposite edge of the plate, the improvement which consists in a spiral spring under compression having one, end engaging said frame and its opposite, end engaging said supporting portion, the spring being attached to one of said parts and acting to hold the plate against said top- 3. In a Strand tensioning mechanism including a frame,

paced ears the trans a metal plate havin a supraning portion along one edge and bearing portions, a pintle extending through said bearing portions and pivotally mounted at its ends in said cars, a comb member of refractory material fastened to said supporting portion, a fastening screw extending through said comb member and supporting portion, and a stop located on the frame under the opposite edge of the plate, the improvement which consists in a spring mounted between the frame and said supporting portion and acting to hold the plate against said stop.

No references cited. 

